Displaying Notification

DisplayingNotification.swift

private func setupNotificationsSettings(alertTitle: String, alertBody: String, identifier: String, fireDate: Date, repeatInterval: NSCalendar.Unit) {
    
    if #available(iOS 10.0, *) {
        
        let specificDate = fireDate
        
        //convert dateComponents() to Date()
        let dateComponents = Calendar.current.dateComponents([.year, .month, .day, .hour, .minute, .second, .timeZone], from: specificDate)
        var trigger: UNNotificationTrigger
        if (repeatInterval.rawValue > 0) {
            trigger = UNTimeIntervalNotificationTrigger(timeInterval: TimeInterval(repeatInterval.rawValue), repeats: false)
        } else {
            trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: false)
        }
        
        
        let content = UNMutableNotificationContent()
        content.title = alertTitle
        content.subtitle = "omg subtitle"
        content.body = alertBody
        content.sound = UNNotificationSound.default()
        content.categoryIdentifier = identifier
        content.userInfo = ["identifier" : identifier]
        
        
        let notification = UNNotificationRequest(identifier: "silent push event", content: content, trigger: trigger)
        UNUserNotificationCenter.current().add(notification, withCompletionHandler: { (error:Error?) in
        })
        
    } else {
        let sharedApp = UIApplication.shared
        let notification = UILocalNotification()
        notification.alertTitle = alertTitle
        notification.alertBody = alertBody
        notification.fireDate = fireDate
        notification.category = identifier
        notification.userInfo = ["identifier" : identifier]
        notification.repeatInterval = repeatInterval
        notification.timeZone = TimeZone.current
        sharedApp.scheduleLocalNotification(notification)
    }
}